According to Dunlop, that wah is actually a standard Crybaby that had been customized in the early nineties with a High Q inductor and a wider frequency sweep. Collaborations are a good thing, and EVH certainly has an ear for tone.

The MXR M-80 Bass Direct Box with Distortion is more than just a direct box. It's got so many features, you may wonder how you ever did without it! It includes a distortion channel with gain, volume, and blend controls; a noise gate to help keep it clean; a Color control; and 3-band EQ control that lets you dial in any tone you need.